lesson plan

Fault surface

Horizontal displacement of 8 to to meters or more have been recorded alone the fault rupture

Fault Gap

I verticaldisplacement

A feature of large Earthquake

Fault plane

fp whererupturearea

intersectssurface Area

pointdirectly above the In hypocenter

Apoint on thefault Planewhereslips

initiate

usuallyseveralKms depth

Note

Larger Earthquake

involve larger Rupture Area

Small Earthquake small Rupture Area

There are three types of faults

Happeningunder Horizontal compressive stress

I Few

degree to Go

zth

nnnnnnrrren

This large Potential rupture Area indicates that

very very large Earthquake possible

convergent boundary

foutinentallollisionzone.tl

amaylyas

Horizontal tention stress

visible from the Different from thrust faults surface Ho unstable overhang悬垂部分

Deeperthan thrust faults

About 600

2 Associated with divergent boundary

NormalFault

oaf

introslip Earthquake Intermediate death

SinceHorizontal motion there is no crustal thickring 1thing simple shear stress

vertical 900

The motion of opposite or Side moves to the

right Right_lateral

IT south

藏

Right_lateral

Right upset

upset vertically left laterally ross the Fault

stickslip behavior

initial condition

囇 To

Right lateral

Rigg

locked

deepermantle travel faster upper mantle surface travel slower

想 00bouncedback Body A wave

Also calledcompression l waves

can travel through liquid

Second faster wave moved side to side can Not pass through the

fluxes流动

TEE嵓药u the interior

mnn

ㄟ

so 由于贯性不动

Quick than T Surface wave

x axis

y axis

slowthan taxis bodywave

arrived first

more damaging

ㄥ

⼼ Ǚ pp

wa.es

o

Epicenter

l Earthquake